Mega Millions is rolling out major changes — including a 150% price increase — this week, as the multi-state lottery game aims to improve odds and dish out bigger jackpots.

Lottery officials say the new Mega Millions features bigger prizes, faster-growing jackpots and better odds to win.

Fewer people are buying Mega Millions tickets in Massachusetts after new changes to the game took effect, but it's now bringing in a lot more cash for the Lottery. Until Saturday, a Mega Millions ticket cost $2.