you should also try Fish Head Curry + Banana Leaf Rice in one of the Indian restaurants in Little India. And drink Mango Lassi drink made from mango and sweet yoghurt! Also, try noodle shops like Noodle Express (I hope I remember it correctly).
If you go to Arab Street at Bugis, then near Sultan Mosque you can find some local Pakistani food places (I wouldn’t call them as restaurants), and they serve nice dishes like Murtabak. Also, there are some nice shops there where you can find lots of oriental stuff.
If you are not already bored of tropical islands, then renting a bike and riding around small Pulau Ubin island is also interesting. It’s still like a wild place, and kinda shows how Singapore looked like long time ago.

I am sure you will enjoy Jurong Bird Park very much if you enjoyed Singapore Zoo. It’s also top class. And do not miss Musical Fountain in Sentosa island! It’s more than what it sounds like.

And catch a show in the Esplanade theatres.

I missed that city a lot!
Enjoy!

Greetings from Malaysia. Wow…I applauded to you for trying out the durian. Most foreigners would just turn their head and run… hahahahah!!Kudos for trying!! So, how u like it? Its definitely my favorite fruit in malaysia!! :)