Amazon has LEGO Superheroes Gorilla Grodd Goes Bananas for $39.99. This is 20% off from the regular price of $49.99. Plus you get free shipping.

• Bat-Mech features giant bat wings, poseable arms and legs, net shooter, 2 stud shooters and cockpit with Super Jumper launch mode
• Invisible Jet features an opening cockpit, ‘invisible’ flame exhausts and 2 spring-loaded missiles
• Gorilla Grodd and Captain Cold are all-new LEGO minifigures and exclusive to this set!
• Bat-Mech measures over 7" (18cm) high, 3" (8cm) long and 8" (21cm) wide
• Invisible Jet measures over 2" (6cm) high, 6" (17cm) long and 8" (22cm) wide