It´s Chikorita, Charmander or Squirtle
No, the Pokemon Mystery Dungeon: Blue Rescue Team dungeon "Far-Off Sea" does not have a boss.
entei on fiery field
No Grand Sea only has 30 floors
Mew Two
MurkrowButterfreeBeedrillVenonatSnubbullEkansMeowthSmeargleBellossomVenomothExploudPrimeapeIgglybuffTaurosMiltankShiftryKangaskhanEspeonArbokDodrioIvysaurUmbreonBayleefPinsirAggronPersianSwalotHariyamaLickitungGrovyleBlazikenSkarmoryAbsolFeraligatrVenusaurAlakazamTyranitarArcanineTyphlosionSceptileNinetalesSwampertMachampMeganiumSteelixCharizardBlastoiseMewtwo (Boss)
after you beat the final boss
There is a few new Pokemon but no BOSS Pokemon. After the 15th floor you finish the dungeon, and go back home.
the spinda in blue and others happens at a random time when you wake up after beating the main stories boss.
Don't get caught
Stormy seas has 40 floors. And yes, in case you were wondering, Kyogre is the boss. To warn you, There are some pretty tough water types in there, Even a wingull did alot of damage.
after finishing the main story line and getting the HM surf a spinda will come to town and give you an item called the clear wing and tell to go to the fiery field. the boss is entei. After you beat him you will be able to go to the lightning field. The boss is raikou. hope this helps
Team Magma boss Maxie in their hideout in the cave by Lilicove's shore