This is running on the last normal version of KOOL KILLER, but somewhat fixed.
The UI is a bit modified (only the scaling, anchors, and positions) to fit newer devices.
I couldn't find the original description of the game (most likely lost to time), so here's a short summary:
Players are dropped off at a randomly selected map and must survive for 3 minutes against KOOL KILLER. After the timer runs out, a helicopter returns to pick them up to escape. But as the helicopter leaves, an unexpected twist unfolds.