Good but needs tweaking
This is a fun game, but it needs tweaking.
1. Fix the hit detectors: They aren't perfect and its really noticable in level 20 and beyond where you force precision jumping and you can't because of ceilings and blade being bigger than they appear.
2. No bounce down: when the frog hits the ceiling he shouldn't be knocked down faster than what he can jump, this is what makes level 20 and certain other levels almost impossible to complete.
3. No autojump: I hit the jump button once and I should only jump once even if I keep it depressed. I found the auto jump really annoying especially when I hit the bouncy ceiling and I jumped three times in the space of a second.
4. Pause briefly after death: With some levels requiring fast timing from the start of the level the autostart of a level ended up just sucking up lives. I know in one level I spent over 50 lives just two or three times after I died to be prepared for the start.
5. Bug: In the level where there the fire comes in waves and you need to go into the holes to avoid it, if you jump to close to the edge you hit the invisible ceiling of the blocks and get pushed through them under the level to death.
Fix those and this would be a gold medal winning game.