Ebyss is a decent Game Maker production that has a strange shot system adapted from Taito's RayStorm and RayCrisis. Your lobster can only fire at enemies after getting a lock on them. The game design is innovative but controls are poorly implemented.

Pretty innovative but it's inaccessibility will discourage most players from getting very far. A great example for budding GM developers to learn from.

Name: Ebyss
Developer: Anahara Masataka
Category: Shooter
Type: Freeware
Size: 2MB