After receiving some helpful advice from Aftiek the janitor, the Vikings make it farther through the ship.
Reach the Exit
Put all three vikings on the elevator, and go down. Have Erik use his dash attack (the ? button explains how) to break down the wall to the right. Then have him go to the right and do another dash attack to break the wall to the right of the ladder, revealing a tomato.
Have Erik climb to the top of the ladder. There is a hidden area in the wall above and to the left of the ladder, so have Erik jump into it. There is a bomb hidden there.
Switch to Baleog and have him shoot the button to the right of the laser. Then have all three vikings go to the right and use the teleporter (the ? button explains how).
After being teleported, have Olaf put his shield up, then have him go to the right, floating down onto the ledge where there is a red key. Have him go down and talk to Aftiek, then go to the right and use the transporter. Then use the red key on the red keyhole to open the door.
Switch to Baleog and go to the left and shoot an arrow at the switch beyond the laser.
Switch to Erik and have him use his dash attack to break down the wall. Then put all three vikings onto the elevator and go down.
Switch to Olaf and have him go to the right. Make him stand near the floating platform, and have him put his shield up. Switch to Erik and have him jump onto Olaf's shield, then up onto the lowest platform. Unfortunately there is a blue robot up above, and it will shoot a laser at Erik when it sees him. Jump up to the platform above the blue robot, where there is an Omega Bombs. You can use Omega Bombs to kill all enemies on screen. Use it now to kill the blue robot. Or, if you got the secret bomb earlier, you can stand on the right edge of the ledge and use the bomb, and it will fall down to the blue robot. When the bomb explodes, it should kill the blue robot.
Then have Erik jump over to get the yellow key. Then have him carefully go down the platforms and use the yellow key on the yellow keyhole to open the door.
Have Olaf go to the right, where there is another blue robot. Switch to Baleog and have him go to the right and kill the blue robot. Then have Olaf go up the ladder and block the two blue robots there, and have Baelog kill those. Or just have Erik use the Omega Bomb if he still has it. Then have all three vikings go to the exit.