// Yoyo(1988)

Yoyo is an arcade adventure in which you play as Yoyo. Because of a hacker you are trapped inside your computer game. You have to collect valves and hopefully make it out. Aliens and spikes will kill you, but you can avoid death by using your barrier which will kill aliens and remove spikes. Once an alien is dead it stays dead even after you die. Spikes will fully return though.