Identify Looking for a game i've played long ago

[Artemissu]

It was a 2D pixelated sidescroller platformer were you play as a schoolgirl who has to survive some zombie invasion of her school. You move left and right, and jump up or down between floors. There are many zombies walking around, they keep respawning from doors until you destroy or close said doors (can't remember exactly). These zombies can also jump up or down between floors, and when close enough to the player, they attempt to punch them. I believed there were also fire extinguishers you could use, but my memory is pretty foggy on this one. Last thing i remember, if you got defeated, an animation would play of the girl getting banged by the zombies, can't remember if it was in 3D or 2D but the defeat scenes weren't pixelated, this i'm sure. As the game progresses, the levels become harder and harder, with nore spawning zombies, as well as faster and stronger ones.

Really appreciate it if someone can help me identify it, i miss playing it and would like to try and finish it (can't remember if i ever beat it, but i do remember getting pretty far on it).