Put your score in the comments when you win!!! Arrows to move. Space to attack. (There is a cooldown) Collect the stars if they spawn, and then enter the portal to complete the level. Pick between two upgrades every five levels and collect powerups if they spawn. Every fifth level after level 20 will be a boss level.
Note: Stars and portals spawn after the last mob spawns. Thanks so much for five hearts and favorites! Version II: https://scratch.mit.edu/projects/923092547/ I recommend that you try this version first if you haven't; version II is much more difficult.