Flipship Galactic is an arcade game that was inspired by the classic game “Space Invaders”.
The twist here is that as you destroy enemy spaceships, you fill up your “Flip Power” meter, when this is full you can flip into an alternate dimension where everything is flipped. In this dimension, getting hit by the enemy ships fills up your “Energy” bar instead of damaging you. You can then use this energy bar to either heal yourself or unleash a shockwave that destroys all enemy ships in your vicinity.
This game taught me a lot about Unreal Engine’s Blueprint system, enemy wave-level management through data tables, and figuring out a clever trick to achieve the flip effect was extremely satisfying (there is a massive mirror above the level).