Feedback time.
Regarding the math of the game, success rate of the traps beating the Hero are:
Easy - 35%
Hard - 60%
Deadly - 85%
(-5% with "Get Stronger" and -15% with "Skills")
The question is: Do the bonuses carry over to the next death? Or do they reset when you die again?
With this in mind, the "Bonuses" are either easy to abuse or they only help a little bit.
-If they do carry over, the "Get Stronger" bonus would be very broken. For example, assuming that you have 12 lives, you die 8 times and "get stronger" each time, you now have +8 to your rolls(+40% chance of beating traps). The real problem is when you have more than 17 lives because dying 16 times essentially makes you invincible.
-However, the game would be balanced and fair if the bonuses are reset every death or you can only stack them a limited amount of times.