Energy Absorption: Olympius does this to several destroyed monsters in the Shadow World, giving himself the increased power needed to escape. It is acknowledged as merely temporary, which is why Jinxer has Mitchell supercharge the Star Power with the Aquabase's power supply.
Hidden in Plain Sight: Jinxer's human disguise has all his typical attributes (mustache, glasses, gloves, suit, style of hair, etc.), but Dana and Mitchell don't think anything of it because he's wearing a human face.
Hypno Pendulum: What Jinxer uses to hypnotize Mitchell and later command him.
Mitchell explicitly doesn't believe in hypnotism and balks at being ordered to cluck like a chicken. However, the hypnotist is really Jinxer in disguise; he lets this minor party trick fail just so he can have the distraction to slip an artifact into Mitchell's pocket and force him into compliance.
Jinxer:[chuckles] Don't believe in it, do you?
Joel hopes this is the case in the last scene, where he tries to hypnotize Mitchell into giving the Rangers the day off instead of a five-mile hike. Mitchell plays along before saying Joel is going on a ten-mile hike.
Not Quite Dead: Olympius is presumed destroyed during the Megazord fight, but Jinxer finds him among some rubble.