Well done. These kind of gag games can be annoying/frustrating, so it's hard to find a balance. I think you did a great job with that.
The look is simple but cohesive, everything is polished and consistent.
Small notes:
- Highlight was the boulder double fakeout.
- The best mechanic/stage from a pure gameplay perspective was the moving spikes, that was a genuinely very fun platforming challenge beyond being a 'trick'.
- I think the 'mirror' stage might have been better if the mirrored platforms were totally invisible.