Peach (SSBB)/Back aerial
Peach bashes her hip backwards. The move has two different hitboxes, with one strong hit, and a weaker hit. The strong hit has good knockback and is a reliable KO option offstage, being very useful for edgeguarding whilst floating. The weak hit is capable of locking opponents up until decently high percents (the strong hit can lock at very low percents). The move can also be used OoS, though its startup is not as fast as that of Peach's neutral aerial. It is possible for Peach to connect both hits of back aerial if she performs the strong hit while floating and then cancels her float at the right time resulting in her back aerial dealing 21% damage making it her most damaging aerial. Back aerial has low landing lag and auto-cancels as soon as its hitboxes decease making it a strong landing option.