please keep in mind this will change as the game is updated and I probably won't update the thread lmfao. this is what I have learned being on lvl 87 with 55 eggs.
GAMEPLAY
use your arrow keys to move around the map, press the space bar to dig
there is no possible strategy at this time, it is random!
I suggest just starting to dig where you spawn, this saves precious seconds moving around the map
there is now 1:30 to play! you get a little exclamation point and a noise when your bunny is near a prize - egg, time, or gold/plat. You get the indicator when you are within 4 spaces of a prize, it seems to be. move through the map looking for that point to pop up and start digging there.
Spiders now inhabit the map! you can turn them off with the button near the top of the gameplay screen.
Aerdian
timer is proportional to map size it seems like, so you start with 1:30 only once you have the full play space unlocked, when you have trees hemming you in it'll be less [ex: lvl 10 you start with 0:50]. So lower level are good to practice learning how to make effective use of the indicator, while pushing up toward the higher levels where you'll gain more time and more buried objects to work with to have a higher potential egg haul, of course this is with the current state of things, Once enemies get added I don't know how tricky the upper levels might become.
if you have multiple lives, DO NOT press next level. ALWAYS return to title. not return to level one, return to title. this seems to keep the game from freezing. - not sure if this is still the case, however I still do this so as not to risk a life lol
apparently eggs (or other prizes) found with one second or less on the timer are not counted!!!
the only time I got the "wrong code" error was when I tried digging after my time was up. if you have a second left on the clock, don't dig - this MIGHT keep the error from happening and your game messing up. - please report in the bug thread at the top of this forum if you are getting errors!
YOU CAN SPAWN A LEVEL WHERE YOU ARE "TRAPPED"
if this happens I recommend digging up all you can and then waiting out the clock, at least you don't waste a life that way
PRIZES
10 egg

contains both:
20 egg

contains both:
30 egg

contains both:
40 egg

contains both:
50 egg

contains both:
60 egg

contains both:
100 egg and 200 egg may be achievements or flairs!
the 100 egg and 200 egg prize levels have been changed to "coming soon"
this may mean gaia is lowering the amount or that the prizes are broken
your guess is as good as mine.
the last two prizes have been removed from the page for the time being
again, your guess is as good as mine as to why!
the last two egg prizes are back!
100 egg
200 egg
(it's a flair)