Historical clue formulations

• Like some waves — 2024-12-08
• Lightning-fast hedgehog of video games — 2024-09-22
• Video game hedgehog — 2022-10-03
• Sega hedgehog — 2022-01-26
• ___ boom (plane effect) — 2021-09-13
• Ending with ultra- or super- — 2020-08-16
• ___ boom — 2020-08-09
• Sega mascot — 2020-06-21
• ___ boom — 2020-02-28
• Fast-food chain with carhops — 2019-10-29
• Hedgehog of video games — 2019-10-15
• Kind of boom — 2019-06-18
• Like some booms — 2019-05-19
• Drive-in chain featuring carhops — 2018-10-15
• Anthropomorphic hedgehog of gamedom — 2017-09-17
• ___ boom (what a jet may create) — 2016-08-08
• Former Seattle pro — 2015-06-21
• Kind of boom — 2013-10-27
• ___ boom — 2013-02-04
• Sega mascot — 2013-02-02
• Title character in a Sega game — 2012-08-14
• Kind of wave — 2012-06-14
• SST component — 2012-04-01
• ___ the Hedgehog (video game) — 2009-11-03
• Like some waves — 2009-04-09
• Kind of depth finder — 2009-02-27
• Seattle cager, for short — 2007-11-11
• Hit Sega title character — 2007-09-19
• Kind of barrier — 2007-06-10
• Kind of barrier — 2006-12-09
• Seattle cager, for short — 2006-05-30
• Seattle athlete, briefly — 2005-10-06
• Like some booms — 2005-08-10
• ___ boom — 2004-11-23
• Kind of boom — 2004-09-07
• ___ boom — 2004-05-24
• Western hoopster, for short — 2004-02-05
• Part of SST — 2003-03-23
• Kind of boom — 2002-12-25
• Like a depth finder — 2002-05-01
• Part of SST — 2000-09-12
• Seattle athlete, for short — 2000-04-23
• Kind of boom — 2000-03-27
• Court figure in Washington — 1999-12-17
• Like some booms — 1999-10-19
• N.B.A. player, for short — 1999-09-02
• Kind of boom — 1999-06-10
• Part of 22-Across — 1999-04-23
• Like a depth finder — 1999-02-07
• Kind of boom — 1998-12-15