Ok let me see if I can revisit the math...
Let's do bear- 150/120,000 = 800 satoshi But, they can level up so on level 10 bear you get 946 satoshi per 5 minutes. For Robot coin game it takes you 3 mil satoshi to upgrade to level 10. I will lower the cost of feed but generally it will be around 7 mil to get to 120. Keep in mind, in Robot Coin game you will have to restart once you beat level 20. In wonderland coin, there are no resets, so that 7 mil will get you 120 forever. Please let me know if this makes sense? I sometimes don't know what is in my head lol Will be changing the price of feed right now (and it will be a drastic buff!)
To offset the nerf of the animal rewards, we have buffed the following:
- Feed price drastically lowered per feed
- Price to lure the critter of your choice has been changed from 25% to 10%!
Moose hp lowered from 75 to 60
Bear hp lowered from 150 to 100
Please let me know how this plays for you!
I have added into a spreadsheet the data about game so as to know what is the profit we earn per feed we use (that is, per captcha we solve). The idea is to know the ratio of satoshi earned per feed used. Here a capture of the spreadsheet ( I thought the image would embed :S):

So the columns are : Feed; Base reward; Extra Reward per Level gained; Minimum Satoshi per feed (at level 1 of animal); maximum Satoshi per feed (at Level 10 of animal); Minimum satoshi/feed with lure purchased; Maximum satoshi/feed with lure purchased.
For some reason I dont know yet, I get a ratio of 935 satoshi /feed for a Level 10 bear, instead of the 946 satoshi/feed you mention, anyways it is not such a big diff.
Well, here I have suposed that we can do max of 9 upgrades from level 1 to level 10 of animal, therefore to calculate maxes I use Base Reward + 9 * Extra Reward per level (and divide by feed amount as well) . Formula in spreadsheet: (C9+(D9*9))/B9 .
Also, in the case of lure, I substract the 10% of the reward, and then divide by the feed amount : (C9+(D9*9))*0.9/B9 .
And see, the moose actually is more profitable than bear!
Min satoshi/feed: 833 (moose) vs 800 (bear)
Max satoshi/feed: 968 vs 935
And if using lure:
Min satoshi/feed: 750 vs 720
Max satoshi/feed: 871 vs 841
I think moose does not follow the progression in game, it would need some readjust again, so the earning is between Fox and Bear. Anyways before the last readjust, the (min) profit was around 800 satoshi/feed for the bear, so the earning is same but we complete less captchas ( less feed to give)