Tomato Adventure was created by Chihiro Fujioka, who also did Koto Battle (AlphaDream's first video game), some hand held Hamtaro titles, Final Fantasy Legend III, the two Mario & Luigi titles, and the most popular of all: Super Mario RPG: Legend of the Seven Stars.
Tomato Adventure (not in my opinion) is |1.| a little too odd for gamers to understand it, even its name sounds odd, and |2.| most gamers and RPG-lovers prefer Medieval/Fantasy RPGs more than off-the-wall RPGs. These are some reasons why Tomato Adventure wasn't released outside of Japan.
Why are we supporting DeMille? Because |1.| he was mentioned twice in Sakurai's poll, |2.| he is an AlphaDream representative besides the Mario characters, |3.| if he enters, he will become more popular and could cause Nintendo and AlphaDream to create a new Tomato Adventure title, and perhaps release it inside and outside Japan, and |4.| the GBA is becoming obsolete, but it's still in use thanks to the Game Boy Micro and the Nintendo DS's GBA port.
1UP.com thought that Tomato Adventure and some other GBA titles would be nice to increase the GBA's lifespan.
And why do I refer to Tomato Adventure's protagonist as "DeMille"? Because after I copied and pasted his Japanese name (デミル) in Google, I encountered some English names and most of them are "Nelson DeMille". I even used
the best Japanese/English online translator available to translate his name, and it exactly spells "DeMille". "Demiru" is the romanji (or pronounciation) of DeMille's Japanese name (デ = De, ミ = mi, and ル = ru). Every time that there's an "R" in Japanese, it should be replaced by an "L". I don't know everything about Japanese, so go learn about it at Wikipedia, if you want to.
If DeMille can't be a playable character, then he might as well be an Assist Trophy. Many people never thought Dr. Wright from the SNES Sim City and Sim City 64 would enter, but he was mentioned once in Sakurai's poll, and became an Assist Trophy. When people saw him as an Assist Trophy, several of them started comparing him to Phoenix Wright (because of their last names being the same) and Adolf Hitler (because of their mustaches and taunts, but I believe Dr. Wright looks more like Groucho Marx and Will Wright). Hope something like this won't happen to DeMille if he enters as an Assist Trophy or a playable character.