the beta is pretty solid, the only 2 bugs i could find were
1. if you go into the menu while downed by an enemy, you can still fill the gauge to get up
2. if you go first to the teacher and not to the basement door, the teacher will ask if the power is back and you can still use the rollgate, BUT you are missing the pistol.(might be a me problem because i had not much health after the basement left, which left me defenseless against the rollgate horde and clicked new game.)
at last, please make the first aid kits replenishable after safe and relocate the first aids in the infirmataries since you cant safe without using the kit, which means that you wasted it...
there are sooo many ideas, tentacle plants, rabid dogs, slimes, aphrodisiac plants, the giant zombie in the PE hall, other mutant insects like scorpions(mentioned below),a jump and run across maggot,rat or tentacle pits(needs jump function),slimes lizards...any animal you like...
perhaps generic RPGs will help with ideas, sincerely
Alastor Darkwood