According to the rating its meant for three year olds and such, but I am way older than 3 and really enjoy this game, but I have a few pointers to make it even better :)
The graphics are great :D I think there should be an option to save your robot and then be able to go back and play with it again later. Also, instead of making all the material parts randomized, it should all be together so its possible for anyone (assuming youre targeting every age) to match up all the parts and stuff and REALLY customize the robot.
All in all, this game is very fun and very entertaining, I would give it five stars if these options were added ;)
Pinkberri about Toca Robot Lab, v1.0