Jakethe Dog, the second protagonist of Adventure Time, is a magical dog and Finn's constant companion, best friend, and brother by adoption. Jake has Stretchy Powers, which allows him to stretch and manipulate his body, coming in handy on a lot of occasions throughout his and Finn's adventures. He is the son of Joshua and Margaret. Jake has a brother named Jermaine. Jake is 28 in magical dog years, but he rarely acts maturely. He is probably 14, around Finn's age, in human years. Both he and his girlfriend, Lady Rainicorn, share a passion for playing the violin.
In M.U.G.E.N, he was first made by Ivan Luiz, both versions of which were shoddily made and horrible overall. FelixMario2011 then made several edits of improved quality and performance. After that many other versions of this character were made.
Ivan Luiz made the first version of Jake in M.U.G.E.N. The character's condition was bad due to inconsistent hitboxes and its inability to move. Ivan Luiz made a new version which slightly improved upon the first version, although it was still a spriteswap of Poisonberry. Practically nobody uses these versions as of now.
With the help of Ivan Luiz, FelixMario2011, Madoldcrow1105, and Hiperhazz's recent Jake the Dog characters, Dchan250 recently made Jake the Dog for M.U.G.E.N. It is an edit of FelixMario2011's version with new sprites taken from Madoldcrow1105's Finn the Human, new hypers, and new sounds. Dchan250 says he will still update him occasionally. This Jake is considered high quality, and is the most downloaded Jake in M.U.G.E.N (the second most downloaded being FelixMario2011's edits). Hiperhazz is also currently helping out with Dchan250's Jake, but also created his own version before contributing to this version.
In terms of gameplay, most of his crouch and aerial attacks are the same as his normal attacks, likely because this version of Jake is in beta. However, this Jake has a cheap
AI and is a combo-heavy character.
Ivan Luiz's recent version of Jake is an edit of Dchan250's Jake (which in turn is an edit of the Jake from Madoldcrow1105's Finn the Human character). This edit keeps the original maroon-colored outlines of Madoldcrow1105's Jake, but has an additional hyper attack called 'Sticks'.
Hiperhazz also worked on his own Jake the Dog character. Much like the majority of Jake characters, this one uses sprites from Madoldcrow1105's Finn the Human. It's first release was an edit of Madoldcrow's Princess Bubblegum -- this version, however, is now offline. As of august 2014, Hiperhazz released a new version which fixes many bugs previous versions had. This new version also includes a configuration file which allows the player to set some options for jake's gameplay such as the "Hypermode" (jake filling his power bar), zombie transformations, and OHKO attacks. After this update, Jake's moveset was mostly redone by changin his regular attacks as well as adding/removing special and hyper moves. Hiperhazz's regular Jake comes with a Spanish voicepack by default, but there is also an English voicepack (also by hiperhazz) that can be downloaded here.
This character is an update to the old version created by CyberAkumaTv. This version was up for 7 months. It had bugs, glitches, badly calculated sprites and the wrong sounds. Later on, the same creator launched a new version with very noticeable differences compared to the old version, such as less bugs, sprites that were better calculated, better animations, and different sounds, original coding and character with the original scale of the old version still exists. This character works in both WinMugen and MUGEN 1.0
Awesomedude54 recently made a Pocket Jake the Dog character. This Jake, as well as more recent versions, uses sprites from Madoldcrow1105's Finn the Human character. It also uses his .sff and .air files as well. Some of Pocket Jake's sprites are taken from Hiperhazz's vesrion, but his palettes (Madoldcrow1105's palettes) don't fit with Hiperhazz's sprites at all. In addition, he's a spriteswap of Felixmario2011's second edit, and since that edit lacks the additional state file for supers, trying to perform one with Pocket Jake will leave him looping his walking animation.
Recently, Awesomedude54 cancelled the character due to having difficulties in coding combos.
This character appears to be a normal Jake, but its hypers are different, his attacks are similar to Cyber-Jake's attacks and are like Akuma's attacks, but more powerful. The AI is very difficult and will be a challenge to overcome. He is supposed to be the enemy of Cyber-Jake.