Nuclear Calamity

Nuclear Calamity is a series of lightgun games made by EXEMPT, the gameplay is mostly in the style of Time Crisis.

Main Series

 * Nuclear Calamity (2000)
 * Nuclear Calamity 2 (2002)
 * Nuclear Calamity III (2004)
 * Nuclear Calamity IV (2007)
 * Nuclear Calamity V (2011)
 * Nuclear Calamity VI (2015)
 * Nuclear Calamity VII (2019)

Spin-Offs

 * Quavers (2008) - Horror carnival-themed, basically if CarnEvil had an affair with Time Crisis, using Nuclear Calamity IV's engine.

General
Nuclear Calamity is a Time Crisis-style game, where you can take cover to avoid damage.

Scoring
In the original 2000 version of Nuclear Calamity, you just get 100 points of each shot, but you can infinitely shoot enemies, something you can do in the second game, but not in the third and onwards.

Tropes

 * 1-Up: Did the opposite of what Time Crisis did with this trope, while Time Crisis 1 had it and the sequels dropping it, Nuclear Calamity had no extra lives in the first entry, while the sequels featured nurses that can be rescued, which are really hard to rescue (they're optional and don't required to be saved if you're aiming to save every civilian), but if you do, you're instantly awarded with an extra life if you save them.
 * Anti-Frustration Features:
 * Nuclear Calamity III added the "Peril Splash", which is just the "Crisis Flash" from the Time Crisis series, unlike the Time Crisis games,
 * Also beginning with Nuclear Calamity III, the timer pauses on each "HOLD IT" sequence, the first two games had the timer still ticking.
 * Beginning with Nuclear Calamity 2, running out of time only docks away a single life instead of an instant game over, the timer is still based on the first Time Crisis game though.