rRootage

Description
rRootage is an abstract shoot 'em up where the only enemy is a single massive enemy ship. The enemy design and firing patterns are algorithmically-created, starting from simple firing patterns to setups that will give even experienced players a challenge.
rRootage has four modes:
- Normal (a limited number of bombs are available, which can destroy enemy bullets)
- Psy (similar to Psyvariar, the player grazes enemy bullets to fill up an invincibility meter)
- Ika (similar to Ikaruga, switches the ship between white and red; bullets of the same color damage the boss if they are hit instead of destroying the player's ship)
- GW (similar to Giga Wing, a reflect meter refills automatically; when full, it can be activated to reflect nearby bullets to the boss).
Each mode has a set of 40 stages, which can be played in any order. Each stage is won by defeating five bosses in a row.