Spelunky is © 2008, 2009 Derek Yu and Mossmouth, LLC, and is used under the [Spelunky User License v1.1b](https://spelunky.ai/LICENSE.txt). spelunky.ai is an unofficial fan project, not affiliated with or endorsed by Mossmouth. The game and its assets may not be sold. Music by George Buzinkai and Jonathan Perry; sound effects made in SFXR. From Spelunky Classic 1.1, © 2008, 2009 Derek Yu and Mossmouth, LLC. # Push Block From the spelunky.ai wiki: . A Push Block is terrain in Spelunky Classic, a loose stone block the player pushes along the floor at half a pixel a step, which falls when pushed over an edge. ![A square tan stone block with a raised border](https://spelunky.ai/wiki/media/sprites/sBlock/frames/0%404x.png) | Push Block | | | ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Effect | Pushed by walking into it; falls[^1] | | Destroyed by | Bombs, the Mattock, leaving the level | | Object | `oPushBlock` | | Found in | [The Mines](https://spelunky.ai/wiki/mines), [The Jungle](https://spelunky.ai/wiki/jungle), [The Temple](https://spelunky.ai/wiki/temple), [Olmec's Lair](https://spelunky.ai/wiki/olmecs-lair), [Graveyard level](https://spelunky.ai/wiki/restless-dead), [High scores room](https://spelunky.ai/wiki/high-scores-room) | | Drops | [Gold Chunk](https://spelunky.ai/wiki/gold-chunk), [Gold Nugget](https://spelunky.ai/wiki/gold-nugget) | Push blocks are made in [the Mines](https://spelunky.ai/wiki/mines)' and [the Temple](https://spelunky.ai/wiki/temple)'s rooms, on tiles of their own and from some of the [stone blocks](https://spelunky.ai/wiki/block) the levels are built with, in [Olmec's Lair](https://spelunky.ai/wiki/olmecs-lair) from stone blocks, and in a [graveyard level](https://spelunky.ai/wiki/restless-dead)'s crypt. Unlike any other block, the player can move one: walking into it pushes it along, and pushed over an edge it falls. Bombs and the [Mattock](https://spelunky.ai/wiki/mattock) break it like any block. ## How it works **Clip: Pushing a block.** The player walks into a stone block and pushes it slowly along the floor to the edge of a drop; it falls, lands on the floor below, and he drops down after it. ([video](https://spelunky.ai/wiki/media/clips/push-block/push/clip.mp4)) The clip shows a block pushed off a ledge: the player walks into it, pushes it slowly along the floor to the edge, and it falls to the floor below[^2]. ### Pushing Walking into a push block on the ground, not ducking, the player pushes it: he presses against it, and the code that moves him moves the block a pixel for each pixel he moves into it, unless something solid is beyond it[^3][^1]. In play that's half a pixel a step (15 a second), a block's width in 32 steps, where he walks at 3 pixels a step[^2]. After a moment of it, he's drawn pushing[^4]. Only the player pushes blocks: the code allows it to characters alone, not monsters[^5]. A block stuck against something solid stops, but the player pushing it doesn't: he creeps into it, and once his middle is inside, he's crushed. That's [Crushed by a pushed block](https://spelunky.ai/wiki/push-block-crush). ### Falling Each step a push block has nothing solid under any part of it, it falls, gaining 0.6 pixels per step of speed a step, up to 8 pixels per step, and stops on the first solid thing below it, with a thud[^6][^7]. In the clip it doesn't drop until it has been pushed wholly past the ledge. It only falls while it's in the view; one off screen hangs where it is until the view comes to it[^8]. One that falls out of the level is gone[^9]. ### In lava A push block in [Lava](https://spelunky.ai/wiki/lava) sinks a twentieth of a pixel a step, taking any push blocks stacked on it down with it[^10][^11]. ## Locations | Where | How | | | ------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------- | ---------- | | [The Mines](https://spelunky.ai/wiki/mines) | Each push block tile, with a 1 in 4 chance | [^12] | | [The Temple](https://spelunky.ai/wiki/temple) | As the Mines | [^13] | | [A graveyard level](https://spelunky.ai/wiki/restless-dead) | Both push block tiles of its crypt, always | [^14][^15] | | Where there are stone blocks: the Mines, the Temple and [Olmec's Lair](https://spelunky.ai/wiki/olmecs-lair) | Each stone block standing on a brick, Temple stone or a hard block, and not beside lava, with a 1 in 4 chance | [^16] | The [high scores room](https://spelunky.ai/wiki/high-scores-room) has the one the player pushes onto its reset button[^17]. In custom levels it's the [level editor](https://spelunky.ai/wiki/level-editor)'s tile `B`[^18]. ## Interactions - **[Spear Traps](https://spelunky.ai/wiki/spear-trap)** strike at a push block in front of them as at a monster[^19]. - **[Arrow Traps](https://spelunky.ai/wiki/arrow-trap)** fire at a push block falling through what they watch: their sensor counts a block by its speed[^20], which it has only while it falls, as pushing moves it a pixel at a time without one[^21][^22]. - **Breaking it.** A [Bomb](https://spelunky.ai/wiki/bomb) or the [Mattock](https://spelunky.ai/wiki/mattock) breaks a push block like any block, leaving rubble[^23], but its destroy event is its own: unlike an area's rock, it doesn't take what stands on it or bring down a lamp hanging under it[^24]. - **[The City of Gold](https://spelunky.ai/wiki/city-of-gold).** Every push block there is gold, and breaks into three [Gold Chunks](https://spelunky.ai/wiki/gold-chunk) and a [Gold Nugget](https://spelunky.ai/wiki/gold-nugget)[^25][^26]. ## Tips - Pushing is slow, a sixth of walking pace: a block pushed across a room takes seconds. - Stop pushing once the block stops, or be crushed ([Crushed by a pushed block](https://spelunky.ai/wiki/push-block-crush)). - A push block pushed into a pit or over a ledge makes a step to climb back up by. ## Trivia - A push block is drawn with the stone block's picture, and level generation turns some stone blocks into push blocks once a level's walls are set up[^16], so a stone block and a push block look the same until one is pushed. - The code that lets things push blocks says it lets only the player, and that it can be edited to let monsters push them too; it never was[^5]. ## FAQ ### How do you push blocks in Spelunky Classic? By walking into one on the ground. It moves ahead of the player half a pixel a step, a block's width in about 32 steps, until something solid is in its way. ### Can a push block crush you in Spelunky Classic? Yes, if the player keeps pushing one that's stuck against something solid: the game moves him into the block anyway, and once his middle is inside it, he's crushed. That's [Crushed by a pushed block](https://spelunky.ai/wiki/push-block-crush). ### What happens to a push block in lava in Spelunky Classic? It sinks, very slowly, a twentieth of a pixel a step, taking whatever push blocks are stacked on it down with it. ### Why are push blocks gold in the City of Gold? In the [City of Gold](https://spelunky.ai/wiki/city-of-gold) every push block is drawn in gold, and one broken there scatters gold rather than rubble: three [Gold Chunks](https://spelunky.ai/wiki/gold-chunk) and a [Gold Nugget](https://spelunky.ai/wiki/gold-nugget). ## See also - **Related:** [Spear Trap](https://spelunky.ai/wiki/spear-trap), [Arrow Trap](https://spelunky.ai/wiki/arrow-trap), [Lava](https://spelunky.ai/wiki/lava), [City of Gold](https://spelunky.ai/wiki/city-of-gold), [Block](https://spelunky.ai/wiki/block), [Crushed by a pushed block](https://spelunky.ai/wiki/push-block-crush) ## References [^1]: [`scripts/moveTo.gml:39-93`](https://spelunky.ai/wiki/source/scripts/moveTo#L39-L93) [^2]: Clip [push-block/push](https://spelunky.ai/wiki/push-block#clip-push-block-push) [^3]: [`scripts/characterStepEvent.gml:138-176`](https://spelunky.ai/wiki/source/scripts/characterStepEvent#L138-L176) [^4]: [`scripts/characterSprite.gml:57`](https://spelunky.ai/wiki/source/scripts/characterSprite#L57) [^5]: [`scripts/canPushMoveableSolids.gml:1-6`](https://spelunky.ai/wiki/source/scripts/canPushMoveableSolids#L1-L6) [^6]: [`scripts/gameStepEvent.gml:235-256`](https://spelunky.ai/wiki/source/scripts/gameStepEvent#L235-L256) [^7]: [`objects/oMoveableSolid/create.gml:5`](https://spelunky.ai/wiki/source/objects/oMoveableSolid/create#L5) [^8]: [`scripts/gameStepEvent.gml:238-239`](https://spelunky.ai/wiki/source/scripts/gameStepEvent#L238-L239) [^9]: [`objects/oPushBlock/other_outside.gml:1`](https://spelunky.ai/wiki/source/objects/oPushBlock/other_outside#L1) [^10]: [`objects/oPushBlock/step.gml:3-9`](https://spelunky.ai/wiki/source/objects/oPushBlock/step#L3-L9) [^11]: [`scripts/scrMoveableSolidRecurseDrop.gml:1-10`](https://spelunky.ai/wiki/source/scripts/scrMoveableSolidRecurseDrop#L1-L10) [^12]: [`scripts/scrRoomGen.gml:344`](https://spelunky.ai/wiki/source/scripts/scrRoomGen#L344) [^13]: [`scripts/scrRoomGen4.gml:341`](https://spelunky.ai/wiki/source/scripts/scrRoomGen4#L341) [^14]: [`scripts/scrRoomGen2.gml:79-114`](https://spelunky.ai/wiki/source/scripts/scrRoomGen2#L79-L114) [^15]: [`scripts/scrRoomGen2.gml:353`](https://spelunky.ai/wiki/source/scripts/scrRoomGen2#L353) [^16]: [`scripts/scrSetupWalls.gml:457-471`](https://spelunky.ai/wiki/source/scripts/scrSetupWalls#L457-L471) [^17]: Room [`rHighscores`](https://spelunky.ai/wiki/source/rooms/rHighscores), as the room editor placed it [^18]: [`scripts/scrCreateTileObj.gml:106-109`](https://spelunky.ai/wiki/source/scripts/scrCreateTileObj#L106-L109) [^19]: [`objects/oSpearTrapTop/step.gml:21-28`](https://spelunky.ai/wiki/source/objects/oSpearTrapTop/step#L21-L28) [^20]: [`objects/oArrowTrapTest/collision_oMoveableSolid.gml:5-26`](https://spelunky.ai/wiki/source/objects/oArrowTrapTest/collision_oMoveableSolid#L5-L26) [^21]: [`scripts/moveTo.gml:57`](https://spelunky.ai/wiki/source/scripts/moveTo#L57) [^22]: [`scripts/gameStepEvent.gml:236-256`](https://spelunky.ai/wiki/source/scripts/gameStepEvent#L236-L256) [^23]: [`objects/oPushBlock/destroy.gml:1-11`](https://spelunky.ai/wiki/source/objects/oPushBlock/destroy#L1-L11) [^24]: [“Most blocks but an area's plain rock skip what breaking a block does.”](https://github.com/851-labs/spelunky/blob/2ba0b2f3329e4e7cb0b8e1d4f72866306b27d714/docs/quirks.md?plain=1#L73), [docs/quirks.md §1](https://github.com/851-labs/spelunky/blob/2ba0b2f3329e4e7cb0b8e1d4f72866306b27d714/docs/quirks.md#1-bugs-and-leftovers-in-the-11-source) [^25]: [`objects/oPushBlock/create.gml:5`](https://spelunky.ai/wiki/source/objects/oPushBlock/create#L5) [^26]: [`objects/oPushBlock/destroy.gml:12-23`](https://spelunky.ai/wiki/source/objects/oPushBlock/destroy#L12-L23) ### Source code - [`objects/oPushBlock/create.gml`](https://spelunky.ai/wiki/source/objects/oPushBlock/create) - [`objects/oPushBlock/step.gml`](https://spelunky.ai/wiki/source/objects/oPushBlock/step) - [`objects/oPushBlock/destroy.gml`](https://spelunky.ai/wiki/source/objects/oPushBlock/destroy) - [`objects/oPushBlock/other_outside.gml`](https://spelunky.ai/wiki/source/objects/oPushBlock/other_outside) - [`objects/oMoveableSolid/create.gml`](https://spelunky.ai/wiki/source/objects/oMoveableSolid/create) - [`scripts/moveTo.gml`](https://spelunky.ai/wiki/source/scripts/moveTo) - [`scripts/canPushMoveableSolids.gml`](https://spelunky.ai/wiki/source/scripts/canPushMoveableSolids) - [`scripts/gameStepEvent.gml`](https://spelunky.ai/wiki/source/scripts/gameStepEvent) - [`scripts/characterStepEvent.gml`](https://spelunky.ai/wiki/source/scripts/characterStepEvent) - [`scripts/scrSetupWalls.gml`](https://spelunky.ai/wiki/source/scripts/scrSetupWalls)