Death zones now kill you reliably — previously you could sometimes stay alive while standing in spikes
Thrown mushrooms can now explode mines, including in multiplayer
Level 1 was slightly simplified and a tutorial element was added
Jumps near platform edges feel more forgiving on uneven ground
Players briefly don’t collide with each other at the start and right after cutscenes / question windows
Many mushrooms on Level 3 were reworked — some could previously kill you with a fast bounce
Stability fixes and general cleanup