Lucifers Kingdom

Lucifer's Kingdom is a game that is based on the arcade game Star Force. There are 5 different star systems, each with 6 planets to fly to (so it's actually close to the Coco 3 game Xenion in that respect), and multiple alien ships with different flight and attack patterns. There are plenty of things to shoot on the ground too, of varying sizes; some you have to shoot multiple times. Of these, some eventually reveal a crystal that you need to pick up; you need a certain quantity of them in order to be able to make it to the next planet. There are also multiple other things to destroy on the ground, and occasional point multipliers that you toggle on off by shooting them. The ultimate goal is to make it to final planet in the 5th system and destroy Lucifer himself. At the end of each planet you get bonus points depending on what items and crystals you picked up