Kero Blaster is self-consciously retro to a fault. While the music and graphics are well-executed in a low-bit style, the gameplay itself does not improve on the flaws from that era. The varied weaponry combines with level and enemy design to create tense action sequences that challenge both your tactics and reflexes. Unfortunately the outdated checkpoint system only tested my patience. Repeating an entire level because I died on a boss is not fun. Nor is losing a life or starting a level over due to cumbersome, unresponsive platforming controls. Fans of early platformers may find the stiff controls nostalgic, but I just found them irritating.