This game was fun to play. I definitely felt a sense of urgency as the game picked up speed. In terms of things that could be implemented, I was thinking for later on in the game, enemies could be spawned in that either shoot at you or try to melee you. The portals worked as intended, but there were a few occasions where I would click out of bounds by mistake, but that is just something you get used to with more time playing the game. I've played the portal games in the past so I had a good understanding of the concepts presented. The portals themselves were presented fine in my opinion. Regarding aspects of the game that need more work or need improvement, there are not any that come to mind.