Dennis will use Sponge Bob as a hockey stick and hit toilets at you
(which means you are Patrick). If you upgraded Pat's Star Spin, use
it to hit them back at him. The entire battle remains the same, except
after a chunk of his health is gone enemies will appear and spin attack you.
Jump on their heads. In part two of the battle, you will be Sponge Bob.
Dennis wil throw daggers at you. Just dodge them. Attack him with a
Bubble Bowl. Again, the fight is the same, only fish with giant crowbars
will try to hit you. If you upgraded your Bubble Bowl, detonate it between
Dennis and an enemy if they are close.
Defeating the frogfish:
The fight starts with Patrick. The frogfish will try to ram you at first.
Dodge it by cartwheeling out of the way (because Patrick is so slow).
If it hits you, hit the old lady on its tongue. Once you clear the green
part of its health bar, it will jump to another platform. It will dig
with its tongue and try to hit you. Hit the tongue. Keep repeating this.
When the fish jumps to the other platform, the tongue will do a spinning
attack. Slam it !
Defeating Plankton's statues:
To defeat the giant statues, hit it on the eye with a Sonic Wave Guitar
Attack when it is open. However, they can also attack. The first is easy.
It will shoot big molten rocks at you. Wait until half a second after
the eye closes and start the Sonic Guitar. It should be open by the time
you hit it. The next one is easier. Stand on the platform to the left
and its eye will try to shoot you. Jump to the right and use a guitar.
The next two are the easiest. There will be enemies guarding them,
but they are pushovers. Hit the missiles that they throw at you back
at them (via the Macho Karate Spin). Then, one eye will open, attempting
to send out more enemies. Just hit the eye. Do the same with the other
one. The last one is actually a mini-Boss (although it has no health
bar). It takes three hits to defeat it. First, take out the three
enemies in the middle platform. then go to the closest platform and
kill the enemies as you go. Next, jump on the springboard and prepare
for a fight. The conveyors will start moving and the eye will open.
It will shoot a laser at the front conveyor belt, and also shoot out
a ball of lava. Wait until it is done, then jump to the front belt.
immediately use a Sonic Guitar. Do the same thing two more times to win.