I like the simple aesthetics of this game, which complements well with the easy-going music. Well, as for the gameplay, it is definitely too hard, most times I have to keep spamming my bullets to kill enemies, and there's nothing I could do aside from that to slow them down, or maybe I could run faster while wasting some stamina to have time to recover the corpses.
If you want to continue development further down on this game, consider this:
- Maybe you can add different types of weapons with different types of behaviours on shooting and on their bullets! Maybe a shotgun with heavy knockback can keep hordes of zombies away, but has short range for ones that are a bit far and separated;
- Setting traps and having the zombies fall could also be a great idea for this type of game! Smarter zombies could avoid the most basic ones, that would also be an interesting quirk;
- Try to empower the player and make all of his actions satisfying (look up Game Feel), perhaps you could add bigger and faster bullets with heavy bass sounds, maybe you could even think of adding grenades with delicious explosions!
This has a lot of potential, and I understand that since a 48hour development is too demanding and balancing can be overlooked (trust me, this has happened to me on most cases), but great job still!