*bump*
For some of you who think that Mike would be the clone of Ness, let me tell you why Mike isn't much like Ness:
* Mike's island yo-yo isn't always his main weapon. It's like the Iron Swords and Rapiers in the Fire Emblem series, the Wooden Sword in the first Zelda, and the sword of Link's Uncle in A Link to the Past. It never will become your main weapon throughout StarTropics. However, it will be used again when Mike is low in hearts. Mike's other main weapons, the Shooting Star and the Super Nova, are more like
flails. In the SSB series, Adult Link uses the Master Sword (in Ocarina of Time and Twilight Princess), Marth uses the Falcion (a.k.a. Sword of Light), and Roy uses the Sword of Seals. The swords they use are obtained later in the games they originated from.
This image below is from the instruction manual of Zoda's Revenge: StarTropics II, which shows Mike using a weapon that looks similar to flails:
For the other weapons and moves Mike can use:
* Mike's Shockwave moves aren't much like Ness's PK/PSI moves, because Mike's Shockwave moves are more about magic than psychic. However, according to the plot of Zoda's Revenge: StarTropics II, Mike uses his mind to cast his Shockwave moves.
* All the weapons Mike and Ness both have are baseball bats, slingshots, and yo-yos. Mike's other weapons besides the ones I mentioned earlier are:
Fire Sticks (just plain sticks on fire)
Snowman Dolls (they don't damage, but they freeze anyone)
Bolas (just plain bolas. They go across the screen in StarTropics, but they don't in Zoda's Revenge: StarTropics II)
Mirrors (for reflecting attacks)
Spikes (a.k.a. Spiked Cleats)
Astericks (a weapon that can be thrown and either hit twice as hard, or throw them, then hit a button again and split them on a 90degree angle in opposite directions.
Horse Hyde (which is a baseball)
Lazer Gun (a quite generic laser pistol that shoots long range blasts)
Super Lazer Gun (Super Lazer Guns are more powerful than the Lazer Guns, but don't have a wide range. What's great about this weapon is the fact that it fires in a three block width. It's good for those enemies that you wish you could hit on an angle)
Rocks (just plain rocks that do little damage)
Tink's Axe (first real weapon in Zoda's Revenge)
Cleopatra's Bronze Dagger (second real weapon in Zoda's Revenge)
Spike Disks (just plain spike disks. They are like frisbees with spikes on the sides)
Leondardo Da Vinci's Katana (third and last real weapon in Zoda's Revenge.)
3-Way Shot (shoots three spiked spheres at once: one toward the left, one toward the right, and one straight forward)
AND
* Mike is American, while Ness is Japanese.