Cranky Kong is one of the last Nintendo characters with a genuinely fun move set without being too simple.
I beg to differ! Yes, it may be said that his mobility would be sluggish, and it would take SOME work to compile an appropriate, consistent, and exciting moveset, but he has plenty of retrospective (and if you like, modern, but I prefer prefer to steer clear of that denture popgun I heard about) references, and I gladly take up the challenge, so here is a basic moveset summary:
Jab (AA): Cranky punches forward with his left hand, and swings his cane upward to follow.
Side tilt: Cranky thrusts the end of his cane forward.
Up tilt: Cranky jump-punches upward.
Down tilt: Cranky trips the opponent with his cane, even at high damage.
Dash attack: Cranky kicks forward (in a similar way to Brawl Donkey Kong), supported by his cane. He stumbles afterward.
Up smash: Cranky throws a barrel over his head. The barrel rolls along the ground, damaging foes and absorbing projectiles. The properties of the attack are random and determined by the barrel thrown, with standard barrels (65% chance) being the most common, steel barrels (20% chance) reflecting projectiles and bouncing off walls, and TNT barrels (15% chance) exploding upon impact with the ground.
Side smash: Cranky swings his cane to his left, similarly to how Donkey swings the home-run bat in Brawl.
Down smash: Cranky slams the ground with his cane, causing a quake nearby.
His aerials are cane swings, a cork-screw attack, and a punch.
Down air is a pogostick attack (like you said) that functions similarly to Link's down air, except he bounces off the ground if the move does not end before landing, meaning it has no landing lag, and because it is a stall-then-fall move, it can functions as a useful escape move.
Neutral B: Cranky throws a pixelated jack that bounces along the stage that causes severe knockback, comes out quickly, and cancels nearly all projectiles, but only four can be thrown before Cranky must wait for three minutes to use the move again.
Side B: Cranky pulls a potion out of his vest. This is a throwing item that, upon striking an opponent or Cranky, randomly buffs or debuffs them. There is a random color aesthetic.
Down B: What I suggested earlier.
Up B: Cranky launches himself upward at a controllable angle using a cannon barrel.
Final Smash: Cranky plays through the animation seen at the beginning of Donkey Kong Country, repelling opponents with a force field and healing periodically.