- A few more waifu-types, like the brides from Dragon Quest 5, some girls from Final Fantasy, Marle and Kid from the Chrono series, Sayla from Mobile Suit Gundam, Bulma and Android 21 from Dragon Ball... I could go on for actual hours, but here are a bunch of potential characters :)
- A floor trap specifically designed to grab someone who is panicked, maybe a sticky floor to slow them down to give time for the gas lockers to reload. Or maybe just a sticky floor in general, to slow people down.
- Color picker for the tentacles?