This DLC takes a little over 3H. You play through 4 additional levels, and can eventually replay harder versions in which some collectibles are not in the same spot.
Not worth 8€, the levels were more annoying and especially more janky than the base game. I only played the harder version to get all the achievements (it's not required to unlock the final boss) and I didn't have fun.
Even if you absolutely want to get the achievements, you should still wait for a sale.
izigame.me
It may take some time when the page for viewing is loaded for the first time...
