A very simplistic riff on the likes of TF3 with a gimmick of switching between a robot and standard ship. The robot's bombs essentially give you I-frames on demand, whereas the ship is able to cancel bullets with a Shockwave. Although this is one of the easier shmups on Genesis, chain deaths are still a very big possibility as you lose everything on death and the game unfortunately commits the design sin of having speed power ups. I'd consider this the better game over Whip Rush (also done by renovation/vic tokai) even if that one offered adjustable speed.