You'll need to get High Jump in the Treasure Chest next to Gepetto. Once you got it find a board that you can jump the the highest ledge. I couldn't really describe on where to go. But maybe you'll find it.
To find Riku in Monstro you need to have found and equipped the High Jump ability. Using the High Jump ability you will be able to jump across some platforms in Monstro's mouth. This will let you reach a door you couldn't reach before and should eventually lead you to Riku.
Go beat Monstro. It is kind of easy. Just find Chamber 4 and then follow Riku.
Yes, monstro is in kingdom hearts, and he can be really confusing. just go in the door that riku went through (watch the cutscene) and everything else is pretty straight forward, just don't try and jump any gaps.
He ends up with Riku because Risa never loved Niwa kun
There isn't a keyhole in Monstro. All you have to do is beat the Parasite Cage twice. Once in the easiest part where you just enter right in, and the second time where you have to jump a couple of times where Riku was.
Ok, first you need keep trying to fly between agrabah and Halloween town. If goofy appears saying that you need to go before he comes back, hold the O button to slow the ship down. This may or may no work. but don't give up. He will show up.
In the first episode riku sees dark on her balcony and screams dark then runs up and kisses her so yes she does kiss someone
Riku Suokas's birth name is Riku Tapani Suokas.
Riku Kemppinen's birth name is Riku Antero Kemppinen.
the name to distinguish KH1 Riku. Riku(normal) was the boy on the island, dark Riku was the heartless lord, with the armor previous to ansem, seeker of darkness infiltrating his body, where he is named Riku-ansem. Riku with the cloak is called cloaked Riku, and Riku that looks like ansem, seeker of darkness doesn't have it's own designated name. Claification, dark Riku is the Riku wearing the heartless armor, commands heartless and works for maleficent before ansem, seeker of darkness abducts him.
Riku
I think looking up a video will be more helpful for what you are looking for.