What up CoolNard, check with Japan's embassy in Singapore for info on getting a work visa. The requirements differ by nation and I am unfamiliar with Singapore. You should be able to click through to the embassy's site through the JET's website
The JET Programme - Aspiring JETs - Participating Countries If are not a citizen of Singapore, refer to the country with which you hold citzenship.
Also, check this out
boobooSKI - Ski Jobs in Japan Not sure if skiing/boarding is your thing, but this is what I want to be doing even though it is temp work.
And the chances of me being here eight years down the road are slim. As much as I love Japan, the world's a big place and I have many countries left to visit. I only showed the missing comma as an example for Maku, usually I don't leave the reason for editing. It isn't really wanting to appear perfect, I edit my posts because I am teaching English so when I use bad grammar and make mispellings I feel like a retard.