Chips Challenge 2 Wiki
Timebomb sprite

When the player drops this, it will delay for five seconds, then explode. It will destroy everything within this blast pattern and leave a fire in the center. Monsters, dirt blocks, and directional blocks caught in the blast are replaced with fire, and ice blocks caught in the blast are replaced by water. Note that the time bomb can be used to destroy water guarding an exit square or regular walls on the back of exit squares, providing access to the exit.

Time bomb-0

Time bombs do not destroy chip sockets, logic gates, wires, or steel walls.

Advanced players and level designers will note that the dropped TNT behaves in some very interesting and unexpected ways. It essentially acts as an unpushable dirt block which retains a copy of the player's inventory at the time of drop, and will not begin its count down until it stops on an eligible tile.