A scene showing Kazuki and Toshiko cuddling up to each other under a tree on a cold, lonely and rainy night, makes me feel all warm inside.
Tons of jokes, tons of comedy, tons of fourth-wall breaks and AT LEAST one Max Payne reference.
Yuka from GTA: Advance being Kazuki's daughter (and a result of a night Kazuki once spent with Toshiko).
Toni getting irritated of Toshiko and killing her after listening to her one-year long philosophy.
ALL plotholes (plotditches, in fact) fixed up.
Yakuza gangsters trying to kill you after "Cash in Kazuki's Chips".
VC XBOX-styled rain and blood droplets.
iOS graphics on ALL versions of the game.
Fix ALL game bugs.
EVERYTHING that was cut.
Ability to throw BRICKS at enemies to knock them out for a while.
A black shoe for use as a melee weapon.
Ma Cipriani appearing in person.
Kazuki not being gay but instead an abusive person.
Characters behaving differently depending on what Toni is wearing (e.g. If Toni is in his underwear, then Vincenzo will laugh at him.)
Underwear outfit being available from the beginning.
Flyable helicopters and planes.
A PC port.
And maybe more, LCS is already good enough.