Thanks to everyone who participated in the poll! The winner was "Pitfall Traps with Inflation Slime"! Keep up the good work!

So this is the layout of the room. As you can see it is composed of a tiled floor, the tiles going 15 across and 15 down. As you can also see, about 1/3 of the tiles are marked with red. These tiles are trapped. In order to cross each girl will roll 2 D15 dice (using an online dice roller as I don't own a D15). The first dice corresponds to the horizontal rows, and the second to the vertical columns. If their roll falls on a red marked tile, they set off the trap! If it doesn't, they make it across safely. If a trap is set off, and another character rolls the same tile again, they will re-roll.
For example:
A character rolls a 5 and then a 10. We go down to the 5th row, and over to the 10th column. That tile is clear, so they make it across safely. Another character rolls a 13 and a 3. So we go to the 13th row down and the 3rd column over. That spot is red, meaning they have set off the trap!

The girls will be entering in groups.
The order in which the girls enter has been decided by the previous poll, with ties being divided with more dice rolls (highest roll in the back, lowest up front.).
Lora rolled a Nat 20, and has been moved to the back of the group (increasing her odds of making it). Xenovia rolled a Nat 1 and has been moved to the front.
In the order listed,
Olivia, Peri, and Xenovia will lead the way.
Followed by May, Yue, Tina, and Katie.
Next we have Vicky, Lexi, Jordi, and Charlotte
Finally Rena, Hannah, Zoey, and Lora