Game Play In Spongebob Truth or Square
Initially you start off in Spongebob's pineapple house, under the sea. There is a small party going on in his home, and a few random never before seen fish are within the crowd. They do not do anything but add to the 'party atmosphere'. In the home, you find your main characters, Sandy, Patrick, Gary, and Squidward, and even old Mr. Krabb's joins in later on.
You can take a look around in order to get a feel for the place. It's basically your hub, and the main menu of Spongebob Truth or Square. At the house you can go on quests in order to make Spongebob happy, to help him remember where he put the secret formula, or you can upgrade your home by paying for upgrades using coins you have collected in the missions. For instance, you can turn his shabby looking sofa, into a nicely upgraded brand spanking new piece of furniture.
In the middle of the room you will notice a photo album which is filled with snapshots of Spongebob's happy memories. Here you can play old levels you already beat. When you repeat the levels the second time around though, new tiki challenges open up where Spongebob is able to collect more pieces of furniture and objects for his home.
In a nut shell, the more missions you complete, the closer Spongebob becomes to recalling where he put the secret formula.
Immediately you notice that your last and final battle will take involve you and Plankton. Plankton has yet again tricked Spongebob into believing that he is helping him find the secret formula. We all know Plankton would never help Spongebob unless there was a motive, naturally Plankton motive is to steal the secret formula as soon as Spongebob remembers where it is.
Battling your way through each level however is a heck of a lot of fun, with Spongebob adding new features to his fighting styles each step of the way. In levels you will also come across special floating devices that Spongebob can collect in order to temporarily transform into Patrick, Squidward, Sandy, or muscle buff Spongebob. These transformations usually super charge Spongebob allowing him to smash and crash spin through his enemies.
At the end of each level there are bosses which resemble bad robotic versions of Bikini Bottom characters. Once the boss is defeated, Spongebob adds a new object to his home.