Hi FanEagle, the whole wagering thing is something I also ran into! On the coinhulk site they have the wagerings for the deals, so check the next time 
For 88Roulette its like 40x bonus+deposit, .. let me figure this out, in your case your deposit was 16mBTC and your bonus 16mBTC (100%). That means that you have to place bets worth 1280 mBTC (40 x 32mBTC). That sounds much but I have an idea. You can place 62 times 10mBTC on red and black to meet the wagering requirements. The only issue is, that you can hit the 0 (green) 
Every time you hit the 0 you will lose 20mBTC. From a mathematical view you should lose 40mBTC and keep 60mBTC.
Tell us how it went
Good Luck!
For 88Roulette its like 40x bonus+deposit, .. let me figure this out, in your case your deposit was 16mBTC and your bonus 16mBTC (100%). That means that you have to place bets worth 1280 mBTC (40 x 32mBTC). That sounds much but I have an idea. You can place 62 times 10mBTC on red and black to meet the wagering requirements. The only issue is, that you can hit the 0 (green) Every time you hit the 0 you will lose 20mBTC. From a mathematical view you should lose 40mBTC and keep 60mBTC. Tell us how it went
Good Luck!IMHO deposit bonuses never work in a players favour, they are simply a way of making a casino with a high house edge seem more alluring.
Some players do have good runs with these types of bonuses though.
lets use 88Roulette.
100 units deposited.
+ 100 Bonus units.
200 units total.
Amount to be wagered before you can withdraw:
8000 units.
Now lets say we decide to grind out roulette so we can withdraw.
To work out the cost:
( 8000 units / 100 ) * 2.7 house edge = 216 units return to the house via the house edge.
Now keep in mind you do not have 8000 units you only have 200 units total but you are expected to play 8000 units worth of rounds.
Depositing 100 units and getting a bonus of another 100 units you end losing 216 units once you have played enough to be able to withdraw.
Note how you lose more than you deposit... well you cant actually but that leads into the next trap. You bust out and future deposits are bound by the previous deposit bonus (roll overs) meaning you cannot withdraw.
So really its quite the opposite of coin hulking, why not call it "coin quick sand" as your coins go in, get stuck and rarely come back out.