Set up “Play Pokémon” and “New Game”

[iimarckus]

The menu entries need to exist and set proper flags. Anything else?

[iimarckus]

130bf9b gets partway there: it displays all the menu entries except Continue. The Continue check for an extant save file is wrong (it thinks a save exists when it doesn’t).

New Game still needs to be updated to set the right flags. In the original ROM the two behave identically.

[iimarckus]

Play Pokémon and New Game now start the demo and the regular game, respectively (5020670).

New Game doesn’t have a save option in the start menu; this needs to be fixed.

Continue still needs to be fixed. Apparently $ce60 is the equivalent of pokecrystal’s wSaveFileExists. It should be zero when there’s no save data, but it’s nonzero.