If you want to come to Zoo Melaka, go on Monday or Tuesday. Parking is free on both these days. And come before noon. When I exited around 3.30pm Monday , there was a long line starting to build up.
The animals while not as extensive as zoo negara are well fed and food for petting zoo (rabbits, guinea pigs) and elephants is rm5 each.
The dinosaur section was fun. Gives you a first hand perspective on how large dinosaurs were. Photos with velociraptors are rm50 but its not compulsory to buy. I bought mine since the photo was good.
The Mr Potato RM10 for 5 snack bag near the cockatoos was a good deal. Something you can't get in KL.
Lastly, bring your own water if you don't want to ride the tram or pay rm4 for drinks. You'll be walking roughly 5km - 10,000 steps easily.