You can make room for both Rol.

See, the first secret exit occurs in 2-1, Donut Plains. You get a feather from the first enemy that flies down at you and fly to the end of the level. At the top, there is a key that you put in the keyhole and you can access to the first secret level (I think called Donut Secret 1).

3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989

Technically I only have about 8 digits memorized, but I know how to calculate more...  so as long as I have a computer, I have as many as I need...  and rarely need more then half a dozen.

3.1415

but

http://pi.ytmnd.com/

I know 50, wikipedia has a list of 50 pi number's on it so I decided to memorize all of it because I was really bored 3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 (it makes it easier when you memorize it in groups of 5)

I sort of made a pattern actually. 3. 1415 92 6535 8979323 (you know like that song) 846264 (8 and a palindrome) 3383 27950 2884 1971 6939937 5105

I know 3.1415926. Thats all the digits of Pi I know.

^ LOL

 Damn you stole my link. I wanted to post that one the moment I read the title...