Less than a week after adding the Secret Symbol slot to its portfolio and Slotastic! has now premiered a trio of new titles for its mobile online casino service.Slotastic! declared that its mobile online casino now features the new Return Of The Rudolph, Penguin Power and Hillbillies slots from developer RealTime Gaming while on-the-go players can enjoy a 133 percent deposit bonus worth up to $333 simply for entering the coupon code ‘GONEWMARCH’ before April 5.“Slotastic! just did a major interface upgrade on its mobile casino to make it more tappable and swipeable and this week we have introduced three new mobile slots,” read a statement from Slotastic!.“Penguin Power, Hillbillies and Return Of The Rudolph have all been popular in the online casino for desktop and laptop computers and are now available in the mobile casino for smartphones and tablets.”