I've never been good at surfing.
- Last tutorial text about shooting comes just after being blocked by a crouchable thing - couldn't read it the first time
- I loved tunnel level, it has many different ways to complete. Although the gravity change after jump seemed random-like, allowed to play with the level for a while
- Didn't know gamejolt gives this kind of framework for highscores. It gave me incentive to compete at tunnel level.
- Don't use built-in shadows with transparent objects, that's why ground is shimmering in some levels
Keep it up!