Really fun frantic gameplay. I really appreciated the opening cut scene, that does a lot to pull the player into the game world and lets your imagination fill in a lot of gaps for the basic level design. The pacing in the first 5 min was superb! Loved how crazy an chaotic it felt yet I was able to come out on top. After the 5-minute mark tho the difficulty curve took a nose dive, and I was just spending my time walking around in circles with only unarmed zombies spawning, so there was no more challenge. But that's all good, the first 5 min were really fun! I loved the upgrades animation where the cards spin into view. You also really felt the consequences of each choice. I liked the balance of upgrades/tradeoffs you designed. The music was also really great at setting the tone of the game. Great work!