Good job, I liked the easy-to-use shooting mechanic!
However, some things could be improved upon:
- Changing style does something in addition to adding style points. For example, maybe it could change the player's weapon and/or their walking speed
- The difficulty of enemies. Their AI wasn't too smart (although it is probably very hard to make good AI in Scratch), and I think that it would be fun if more enemies spawned over time so that the difficulty keeps on increasing
Other than that, great job! Also, wow, I didn't know it was possible to upload a Scratch game on itch.io!