Tower of Heaven is that indie browser gaming staple: a ball-shrinkingly tough platformer. On each level you must make it to the stairs to continue ascending the tower. There are large gaps to jump, tiny platforms to land on, spikes to kill, buzz saws to kill you and increasingly punishing "laws" added to proceedings.
Level 4 above adds the law that you cannot touch "gold blocks". Which would be okay if the gold blocks were always gold blocks. But some are also normal blocks, flickering between normal and gold so that you have to time your landing to perfection.
I said "Fuck!" about 11 times on Level 4 alone. What's your record?
Tower of Heaven [Newgrounds]