Metroid

Metroid's ice missiles freeze enemies to set up a follow-up attack. Metroid's ice missiles freeze enemies the way Prey's Gloo cannon does. The freeze gives the player a window to follow up with another attack, so the tool sets up combat instead of replacing it.

Mark Brown of Game Maker's Toolkit groups it with BioShock's electric bolt and Prey's Gloo cannon as utility tools that support other options. He describes the benefit as "giving you a chance to swap to another weapon for a decisive blow." The lesson for builders: design a utility tool to make your other options stronger, not to compete with them.