A tip if you're stuck on Level 22 in the blue key room

[FoutBallon]

Hello, if you're stuck in that blue key room on Level 22: Burnt Offerings, pickup the rocket launcher to unlock the other door. You can only do that if you don't have full ammo, so shoot a rocket to obtain it. Warning: spikes will pop out when picked up, there's a nearby secret wall that can activate blockades to save you from it.