If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
You can pick between 2 type of ship : The frige and the Fish.
The Fridge is generally tougher and recovery HP. It can summon chicken, pigs and flaming cow. The Fish is faster and recovery SP over time. It can summons the Pink Fish, Dolphin and swordfish.
Arrow Keys to move.
C: Weak Weapon.
X: Heavy Weapon.
Z: Protective Weapon.