Slugger

Slugger, A.K.A. Experiment 608, is an illegal genetic experiment created by Jumba Jookiba. He is designed to use his bat-like tail to deflect incoming enemy projectiles. His one true place is as a coaching assistant for Little League baseball. He is voiced by Frank Welker.

Personality
Slugger is a deflective, skillful and beneficial baseball player, who is actually stronger than he appears to be. He is also friendly, kind, helpful, caring and brave.

Lilo & Stitch: The Series
Experiment 608 was the 608th genetic experiment created by Jumba with Hämsterviel's funding. He was designed to use his baseball bat-like tail to deflect incoming enemy projectiles and swat away balls, toys and fruits thrown over the fence by annoying kids. 608 and the other first 624 experiments were deactivated and smuggled to Earth by Jumba during his mission to capture Experiment 626.

All of the experiment pods were released and scattered across the island of Kauai, with 608's pod landing on a baseball field.

608's pod was in with a bunch of softballs. When the team's Little League coach saw it, he realized it wasn't a softball and tossed it. The pod landed in a cooler of ice that was partially melted, activating 608, named Slugger.

Slugger, after shivering from the icy cooler, spotted a woman in a wheelchair who threw a ball for her dog to fetch, and deflected the ball with his bat-like tail before the dog could retrieve it.

Later, multiple coconuts thrown by Mrs. Hasagawa and deflected by Slugger hit Stitch on the head, therefore grabbing his and Lilo's attention. Before they could react, Gantu came and grabbed Slugger. Stitch slammed a crate onto Gantu's head, and Slugger got loose from Gantu's grasp.

Afterwards, Lilo started talking to Slugger and pacified him. When Lilo convinced Slugger that she and Stitch will keep him safe, the former took Slugger home and discovered his batting skills. Lilo decided to put Slugger on her softball team, since Pleakley jeopardized the previous game with his incompetence, and after Lilo and Mertle wagered a rematch.

Thus, Slugger became Lilo's new softball player against Mertle's team. He did really well during practice until Mertle changed the game to basketball, put Gantu on her team, and even made Slugger be part of the wager. Slugger struggled at basketball because he could only hit things, but the game was still won thanks to Stitch and Pleakley.

Being a sore loser, Gantu attempted to make off with Slugger, but Stitch tripped Gantu, causing the latter to drop Slugger. Enraged, Gantu ripped out one of the basketball poles and tried to retaliate. However, he was thwarted by Stitch, who then let Slugger use the pole to whack Gantu over a vast distance.

Slugger was then put in his one true place as the hitter for the Little League softball team, whose coach (the same one who activated Slugger) wasn't a very good hitter himself.

Slugger reappeared in "Glitch", where a baseball pitching machine went out of control while he was practicing his batting skills. Regardless, Slugger deflected every ball the machine threw at him, along with 223's pod.

Leroy & Stitch
The first 624 experiments, including Slugger, were rounded up by Leroy and taken to a stadium to be destroyed. However, Lilo, Stitch, Jumba, Pleakley, Reuben and Gantu arrived before the experiments could be destroyed.

Slugger participated in the following battle between the experiments and the Leroy clones by deflecting Leroys' plasma projectiles back at them.

However, the Leroys soon gained the upper hand in the battle, but were defeated when Lilo, Stitch, Reuben and several other experiments performed the song "Aloha `Oe," which caused the Leroy army to shut down due to the original Leroy's fail-safe.

Stitch! anime
Slugger made an appearance in the Stitch! anime along with Pix, Boomer, Slushy, Blowhard, and Kixx when Yuna and Stitch visited Tokyo Disneyland.

Trivia

 * Despite Gantu claiming Slugger wasn't very strong, he was able to grasp a basketball pole and whack Gantu over a vast distance without any struggle, and another time he suspended Stitch in mid-flight, again without any struggle.
 * Slugger's pod color is blue.
 * Slugger is described by the experiment computer screen as, "Experiment 608 Primary function: Deflection of incoming enemy projectiles."