Worms 3D/Ice, Ice, Maybe

Ice, Ice, Maybe is the fifth mission of the campaign in Worms 3D and its remake, Worms: Ultimate Mayhem.

Mission
Boggy Pete has carved a huge pool of freezing water in the middle of an island. After a certain amount of time, a plane flies over and drops sheep into the pool. Your goal is to make your way around the island, and turn off the switch that connects to the pipe to freeze over the pool and save the sheep.

You'll have to move quickly, because if too many sheep die, you will fail the mission. You will need to collect Girders and Freeze utilities in order to cross gaps and protect yourself. Boggy himself will be sitting atop a huge icicle and, if he spots you, he will lob grenades at you in order to stop you from reaching the switch. Since you start with nothing in your inventory, you cannot attack Boggy in any way. This mission can be quite tricky due to some obstacles being tough to get over and the fall damage you can sustain. Be sure to cover a lot of ground in each turn, as every time your turn ends, the plane will fly over.

Trivia

 * The animation that plays when the Sheep are being dropped into the pool might be the scrapped Sheep Strike weapon. This is further supported by looking into the game's files, which suggests the weapon had indeed been created, but ended up unused.
 * In Worms: Ultimate Mayhem, Boggy Pete instead uses an Air Strike-based Custom Weapon similar to Sheep Strike. Unfortunately, the Sheep loadout is not available for normal gameplay.