Iji/Sector Z

In this sector, you have to complete four different sections with exactly one health bar. If you get killed, you are sent back to the start. There are no health packs or armor packs to resupply you.

Dimensional Anomaly
Monsters will stand still, but if you get close enough, they will fly towards you.

Abandoned Spaceship
Monsters will circle around the platform they are attached to.

Don't touch the spikes, they will instantly kill you.

Unknown castle
Monsters either go back and forth, or travel in a circle.

Secret Base
Monsters fly around and bounce off walls. They will occasionally turn towards you.

Secrets
Try poking the monsters.