WASD/arrow keys to move. Touch buttons to open doors. If you are in the water you lose air. If you are in acid you lose air faster. If you are in lava you die instantly.
GL lots of 'explosions'. In the part just before the first acid rising segment ends, you have to be very precise and LUCKY with your jumps. DO NOT STOP FOR 1 NANOSECOND (joking because you will need to let go of the keys) but try not to stop and go as fast as you can. The 'explosive' version of the OG What I mean by 'explosive' is that the lava will rise SUPER fast.