Use an Ice-type mutant in Aquatic Swamp. If they are out of the water, switch to a Grass-type mutant. Observe that the mutant could use chaotic moves - they can use Ice-type moves.

Use a Fire-type mutant with a Fire Breath move. Using their Fire Breath move for more than several seconds, and then getting in the fire, the moves glitch - all your mutants have elemental types that they did not have before!

Discard Vagitron in your inventory. Vagitron appears again, and Water-type mutants are more effective.

Use an Ice-type mutant in Aquatic Swamp. If they are out of the water, switch to a Grass-type mutant. Observe that the mutant could use chaotic moves - they can use Ice-type moves.

Use a Fire-type mutant with a Fire Breath move. Using their Fire Breath move for more than several seconds, and then getting in the fire, the moves glitch - all your mutants have elemental types that they did not have before!

Discard Vagitron in your inventory. Vagitron appears again, and Water-type mutants are more effective.