If you are an individual legal resident of the 50 United States or the District of Columbia and at least 18 years of age at the time of entry, you are eligible to enter the Sweepstakes.
Entry Method #2: Alternatively, you may enter without downloading the “Sonic Dash Underground” app from the Amazon Appstore by completing and submitting the Sweepstakes entry form located at http://www.amazon.com/gp/html-forms-controller/SonicSweeps or https://www.amazon.com/b?ie=UTF8&node=14725391011 (click the Frequently Asked Questions link, then click the link under How do I enter the sweepstakes for the $2500 Amazon.com gift cards and Sonic prizes?).
See Official Rules to enter through the Sonic Dash app.
Limit of one (1) entry per person using only one (1) e-mail address throughout the Sweepstakes Period. You may not use multiple customer accounts or email addresses to enter the Sweepstakes, and entries submitted through multiple accounts or email addresses will be disqualified.
Prize. We will award a total of one (1) prize, consisting of $2,500 in Amazon Gift Cards and a custom Origin PC. Approximate retail value (“ARV”) of the prize is $4,900.
Winner must have or will need to create an Amazon.com account in order to redeem the Amazon.com Gift Card (“GC”) portion of the prize. The GC may only be used for purchases of eligible goods on Amazon.com or certain of its affiliated websites.
Official Rules - https://www.amazon.com/b/ref=s9_acss_bw_tm_mm1Undgr_2_tc?_encoding=UTF8&node=14392114011&pf_rd_m=ATVPDKIKX0DER&pf_rd_s=merchandised-search-1&pf_rd_r=HXRGATSM65EQF6JNM0QZ&pf_rd_t=101&pf_rd_p=085aca2b-dff6-4c46-a241-03c3feaf718c&pf_rd_i=14725391011