I need to remember the name of some game on a PS2 or 64 or PS...?

I remember that in the first lvl, you controlled a heli and you had to defend this toy train and find some batteries. In the second lvl, it was like this picnic thing and we had to stop the ants from invading. Me and my uncle sucked at that level. My uncle would go find whatever the objectevie told to find meanwhilee I stayed back and defended the picnic.