Lizalfos

In Dodongo's Cavern there are two rooms in which you must fight two Lizalfos each. They are not difficult to beat, however if done improperly, they will run away and trade off attacking you one by one. This is very slow as you can not kill the one that is not in "fight mode" until you've dealt with the current one. Intended strats make each one a two cycle fight, for a total of four cycles. However we can manipulate the damage dealt to them in order to make each Lizalfos a one-cycle fight.

The Lizalfos have 6HP each, and after you deal three damage to one of them, he runs away, and the next one rushes in. To prevent that from happening, deal only two damage with a stored kokiri-sword jumpslash, or deku stick normal slash via Power Crouch Stab. Since he will not run away before 3 damage is dealt, we can now kill him immediately by storing a deku stick jumpslash to our power crouch stab because this attack does 4 damage and only 4HP remains. The second Lizalfos will then take his turn, but will not run away since he is the only one left. Since you have 4 damage stored on your crouch stabs, just stab this one twice for the kill.

Watch the following video to see the fastest movement through the platforms in each of the two Lizalfos rooms in Dodongo's Cavern.

Lizalfos appear elsewhere in the game, but are not mandatory kills, so they can and should be avoided in the interest of time.