Adaran

Jump'n'run, 4 levels. You can get cross-paths-doors to get faster through the game. There are checkpoints in each level. 

You can collect 3 sorts of extras: Extra-life, speed-up and invincibility for a while. Be aware, there are monsters you don't have to touch. 

You can kill them with your weapon pressing space-bar. Moving ist with cursor-keys.