The game is pretty good, and you have aparently made in less than 1 day???, The game can be optimized to run smoothly,I think that you have used to many particles. This can be expanded to be a lot more, with new type of powerups and random events such as longer trails, a small turret the shoots the enemies, and the enemies could have bosses in which you need to create a circle to kill them, or have an enemy that can goes slow but can dash through the line, but anyways pretty cool game.
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Thanks, glad you like it.
Yea, I made it in like three hours, this is my first time joining a game jam so I didn't really expect this many people playing it...... You know, I noted the lag before release but I was too lazy to fix it...
You are right, this game can be upgraded in many ways. Maybe I will make a version with more mechanism later. This game is very easy to write so I think I would just write a new one.