One morning when returning to the office, Eric and I were dismayed to find Bubble Tanks and Triangles making out on the floor... About 9 months later we had a little Bluep!
Not only must you take on the other little bubble enemies around the edge of the screen, you must also simultaneously jump over lasers. Why? Why not?!
Use A,W,S,D to move. Spacebar to jump over the lasers. Mouse to aim and shoot.
Keyboard controls can be mapped and set to what you want.