As its title suggests, it is simply about an unnamed King, who is absolutely gifted at jumping in spite of wearing full plate armor at all times. One day, he learns of a legend telling him of a Smoking Hot Babe languishing on top of a distant tower, and resolves to reach her the only way he knows how - by jumping a perilous path through narrow, vertical levels.
As you may have already guessed, the game is very short, but is also absolutely Nintendo Hard, being primarily designed to challenge speedrunners, much like Remnants Of Naezith or Getting Over It with Bennett Foddy.
Tropes present in Jump King:
- Absurdly Spacious Sewer: The Colossal Drain level, which is somehow located above the Redcrown Woods.
- Creepy Crows: Inverted; the crows sit on some platforms and fly off once you disturb them by jumping there.
- Excuse Plot: The game has an intro text, but it simply says "Legend has it there's a smoking hot babe at the top." There's also an old man at the camp where you start off, and a couple of other NPCs later on, but they don't say anything deep either.
- The Lost Woods: The first set of levels has the King jump through the branches of ancient trees in the Redcrown Woods.
- No Antagonist: The Jump King doesn't face an actual opponent once during his journey - it's just him vs. the platforms he has to master.
- Parachute Petticoat: Once the Jump King finally reaches the babe on top of the Tower and they hug and kiss, he looks down at the way he came from and realizes that he would now have to jump all the way down. Instead, he jumps off the tower with the babe in his arms, her skirt acting as a parachute, and they are carried off by the wind into the sunset. An ending still confirms that they landed safely.
- Schmuck Bait: Subverted- while for a game of its kind one might expect that the tease of a "Smoking Hot Babe" would simply be a trick to encourage people to play as long as they can, the game delivers on this claim, even giving some cute art at the end for the player's troubles.
- Shout-Out: The game's title screen has a clear reference to Metal Gear Solid with its subtitle of "Tactical Leaping Adventure".
- Slippy-Slidey Ice World: First this trope is played with in the Windswept Cliff. It is the game's cold and snowy area, yet it doesn't have ice platforms. Instead, as its name suggests, it has a strong wind that nudges the King in a direction even when he's standing still, and so really messes with the jumping. The later parts of this area even have that wind outright change direction within the same screen on a timer, often forcing the player not to make certain jumps until the wind begins blowing in a favorable direction.
- Later on, however, the Blue Ruin is a very straight example of an ice land, complete with slippery platforms.
- Tree Trunk Tour: Once you make through the first few screens of the Redcrown Woods, you'll need to ascend through the hollowed-out trunk of an enormous tree.
- Wall Jump: A crucial ability of the Jump King.