Blaze is a sci-fi first person shooter action game using a modified Chocolate-Doom engine. It's about shooting a lot of aliens, mutants and whatever else there might be.
Not really level 3. Just thought to try what happens if there's 1600 aliens in the level, all active at the same time.
Cheating 200 health, full ammo, I was able to fire 9 rockets before they killed me.
And trying out for a bit longer with invulnerability... Didn't seem like it would lag. So, it would be possible to have this kind of scenario... Then just need to figure out a way for player to survive it without cheats.