This item belongs to the Stompy set. Collecting three items from this set will transform Isaac into Stompy.
Notes
Walking into Bomb Rocks will cause them to explode.
Mushrooms may hurt Isaac with a poison cloud if walked into.
Polyps may hurt Isaac with blood shots or red creep if walked into.
Flight does not prevent the effect from occurring.
Holes in the ground can be filled if Isaac walks into adjacent rocks from the right direction, similar to bombs.
TNT Barrels will not be destroyed or explode on contact, however Movable TNT Barrels will explode and may deal damage to Isaac if walked into.
Allows Isaac to walk over and destroy Red Poop without taking damage. Isaac will still take damage if he is standing on it when it reforms.
Walking into an Angel Statue in the Angel Room will trigger the boss fight, and Isaac will take damage as the Angel spawns on top of him.
Nullifies effects of One Makes You Small pills, One Makes You Larger pills, and other items which decrease size, such as Caffeine Pill and Binky.
Spiked Rocks can be destroyed, but depending on Isaac's size, angle and velocity they may still hurt him.
Isaac can crush Rock Spiders and Tinted Rock Spiders by stepping on them. Killing a Rock Spider this way will spawn a Spider which is extremely likely to deal damage to Isaac.
This item belongs to the 
Stompy set. Collecting three items from this set will transform Isaac into Stompy.
TNT Barrels will not be destroyed or explode on contact, however 
Movable TNT Barrels will explode and may deal damage to Isaac if walked into.
Red Poop without taking damage. Isaac will still take damage if he is standing on it when it reforms.
Angel Room will trigger the boss fight, and Isaac will take damage as the Angel spawns on top of him.
Nullifies effects of One Makes You Small pills, One Makes You Larger pills, and other items which decrease size, such as 
Caffeine Pill and 
Binky.
Spiked Rocks can be destroyed, but depending on Isaac's size, angle and velocity they may still hurt him.
Rock Spiders and 
Tinted Rock Spiders by stepping on them. Killing a Rock Spider this way will spawn a 
Spider which is extremely likely to deal damage to Isaac.
