You were currently in the Kelp Forest inside of Spongebob's memories. He'd forgotten where he put the secret formula, as Mr Krabs asked SpongeBob to hide it, so with Plankton's help you all went inside his memories find it- not knowing that this was part of Plankton's scheme to get the Secret Formula. Again. Although that did explain what all these robots were doing in Spongebob's mind.

You were headed to Sandy's Treedome, another place where one of Sponegbob's memories, when one of those robots landed in front of you.

The robot locks his eye on you. He looked a tad stronger than some of the other robots, but not by much. His head resembled a submarine with a large glaring red eye in the middle, his head connected to his body by a rod, with two long bendy arms with spiked 'hands' at the end.

The robot lets out a mechanical roar.