OK, so I'm not exactly QUALIFIED to make this speedrun route, as I have no runs on video, but I do know how to run the game.

Splits should be: Village, Bot 1, Bot 2, Ernie, Bot 3, Volcano.

The village is simple, but with one simple skip. Wake up, and go to the village. Spam text, but instead of fixing the bridge, use your beautiful leg kicks to anger the guy by the transport line, and get him to kick you over the gap.

Bot 1, Play through normal by swinging your way to the top and use the clouds to get over, and then you should be in the forest. save the 2 villagers like normal and go to the shop to buy the sunglasses, which are needed to enter. Follow the villagers into the dance club and beat the 'King Of Dancing' Use the electric card the villager gave you to go to the abandoned metro station. Go into their base for the cutscene, then go back out and to your right to the boss battle. Kick the bot to start the battle.

Bot 2, A villager from the original town, which I have nicknamed corn man, will come into the base. You will receive the water cap when leaving, and you need to equip it as you go back to the original village by watering the flower in the 'pink land' and taking the secret. This is the only way back to the original village. Once you are in the village, I suggest taking of the water cap, because you can accidentally press 'z' and plant a flower which wastes time. Fight the boss as normal.

Ernie, As you celebrate your victory, a worm will come into your base, and ask for help. The alarm that goes of when he does this uncovers the power puzzle. After powering the metro you take it to the lake. You must participate in Pik Dug to find the key to the shack. Follow the worm to his family's cave, where the mother asks you to save 'Ernie'

You fight boss 3 immediately after saving Ernie. This should be your shortest split.

Mr. Sunshine takes you into the volcano, and you must kick the security camera for the good ol' worm to grab the key. You navigate the vents as you save your friends and listen in on Mr. Sunshine's evil plans. After the final boss fight, ended through a robot pay rebellion, you chase Mr. Sunshine through lava where he launches popcorn on you. He presses the button, launching you both out of the volcano. Then you kick Mr. Sunshine into space, and you stop the timer as his face leaves your foot.

I hope this was helpful, and have a good day. Cheers!