Can you replace batteries in Brittany chipette toy from McDonalds Happy Meal?

Yes. it is imperative that the Submarine be brought up to Siphon depth before barring over the main generators. DO NOT USE SODA STRAWS as Siphons- not recommended for Submarine use.- I don"t recall Sub Sandwiches at Mcdonalds, maybe at the Blimpie base- oops we are losing the signal from Palisades Park.