Light at depth

You play as a small jellyfish that moves across the screen in small jerks, following the movement of the mouse. 

You need to survive 5 waves, avoiding enemies and projectiles. With each new wave, one more type of enemy will appear on the screen. Also, starting from the very first wave, you can pick up temporary boosts.

At the end of each wave, you can choose a modifier. Most modifiers are almost useless on their own, but they become effective when combined with others.

Some enemies can accidentally kill a large number of their allies, so try to take advantage of this to clear the screen.