Cave Escape by Josip Retro Bits is an action game made for Commodore 64.
Your ship is trapped inside a large cave on an unknown planet. You need to escape from the cave while the alien ship is blocking your way. There is not much time left until the bomb that you set up goes off. Press any key to move your ship forward. Keep an eye on the alien ship, he is making it harder to progress forward. If you pass him, he will follow you and move in front of you. Reach the end of the cave before you run out of time.