Finally, I managed to finish the moveset from Astro bot. I link some videos for some moves if you haven't played the games and want to see more clearly how it could look like.
Astro bot moveset
General: Astro bot can glide for some time if you hold the jump button using his beams under him
The square moves are based on physical attacks and weaker attacks that Astro do in his original games
Neutral square: Punch. A two punch combos, like his normal square attacks in his games
Side square: Balloon throw. Astro pick up a balloon and throw him. This act like a projectile and his based on the balloons that Astro can pick up in the first game.
Up square: Beam charge. Astro use his beams to launch himself upwards and attack the enemies in the air (like Sackboy up triangle with the jetpack). (This isn’t directly based on something that he does in the game, but I feel like it makes sense that he could do that).
Down square: Spin attack. Astro spin rapidly, causing damages to anyone near. This move must be charged and the more you charged it, the more it lasts and gives damage (based on his charged square in his games)
Triangle moves: Those moves are based on Astro’s transformations in Astro’s playroom and on general VR stuff from Astro bot rescue mission.
Neutral triangle: Machine gun. Astro pick up the machine gun from Astro’s playroom. He must charge it, and it then shoots many bullets fastly.
Machine gun video
Side triangle: Jetpack. Astro jumps into the big jetpack from Astro’s playroom. Instead of going up like in the game it goes sideway. The move must be charged and the more it’s charged, the further Astro go, dealing damages to enemies he touches on his way. He then jumps out of it.
Jetpack video
Up triangle: Hopping. Astro jumps in the frog-like suit from Astro’s playroom. Like the jetpack, this move must be charged. The more you charged it, the higher Astro jumps, dealing damage to enemies in the air.
Frog video
Down triangle: VR headbutt. Astro puts an impact plate on the ground. If an enemy step on it, a big robot will slam his head on the ground. Only one of the impact plates can be put at the time. The big robot headbutt is powerful, but a bit slow so even if someone step on the plate, he could still dodge the attack. This move his based on the fact that in Astro bot rescue mission, the player (who is the camera) can headbutt some plates to interact with the environments or attack enemies.
Video of the plate and the headbutt (it's hard to really understand it with the video but imagine you're in VR and your head is the camera).
Circle moves: Those moves are based on the gadgets from Astro bot rescue mission. For those moves, Astro uses a small Dualshock 4 controller. In the game, Astro don’t use those moves directly but it’s the player, so I adapt them for Astro.
Neutral circle: Shuriken. A shuriken is thrown from the controller. This is a faster projectile than the balloon, but it deals less damage.
Shuriken video
Side circle: Water gun. Water is thrown from the Dualshock 4. It doesn’t deal damage, but it pushes enemy. This one has a limit of usage (to avoid that Astro just camp).
Up circle: Hook shot. The hook is thrown upwards from the controller. If it hits an enemy, it will grab him and attract him to the ground in front of Astro. It if touches a platform, the hook will grab it and the rope will act like a platform for a short period of time.
Level that showcase the hook shot.
Down circle: Flashlight. This move must be charged. The flashlight will make a big flash, stunning the enemies near Astro.
Special moves:
Level 1: Laser. Astro pulls out the Dualshock 4 and a big laser comes out of it (the same one that the player uses in the final boss battle of Rescue mission). This has a pretty big range and deals big damage to enemies it touches.
Laser on final boss
Level 2: Rolling ball. Astro transforms into the ball from Astro’s playroom and rolls in it for some time. The player controls it and it gives damage to enemies it touches.
Rolling ball video
Level 3: Spaceship’s crew. A short cutscene play and you see Astro’s spaceship flying in direction of the battlefield. When it arrives, a bunch of robots jumps out of it and attack all enemies on the stages.
Taunts:
Taunt 1: Astro jumps around like he does when he finish a level in Rescue mission.
Taunt 2: Astro puts on a VR headset but jumps out of scare and it falls. (loosely based on one of his idle animations from Rescue mission).
Taunt 3: Astro start sleeping, until he falls, and this wakes him up. (like his idle animation in Rescue mission).
Victory music: The first 7 seconds of the level clear
music from Rescue mission.