Here is the full list of all 40 VASARA Collection (JP) achievements worth 1,000 gamerscore.
Killed 100 Big Turrets in Timeless Mode
Unlocked All Achievements
Finished Vasara 1 and Vasara 2 with all base characters
Finished Vasara 2 on 12 Stages Rank Mode
Finished one Wave in Timeless Mode with Saiga Magoichi
Finished Vasara 2 on 6 Stages Rank Mode
Finished any Stage without killing any Commander
Finished Vasara 1 by defeating the REAL Tokugawa
Killed 100 Boats in Timeless Mode
Killed 100 Crabs in Timeless Mode
Killed 100 Samurai Helmets in Timeless Mode
Killed Oda Nobunaga in Timeless Mode
Killed 100 Small Turrets in Timeless Mode
Killed 500 Commanders in Timeless Mode
Killed Tokugawa Ieyasu in Timeless Mode
Killed Honda Tadakatsu in Timeless Mode
Killed Serada Jirosaburo Motonobu in Timeless Mode
Killed 200 Bat Ships in Timeless Mode
Killed Shibata Katsui in Timeless Mode
Killed 100 Tanks in Timeless Mode
Finished one Wave in Timeless Mode with Akechi Mitsuhide
Killed 200 Helicopters in Timeless Mode
Finished one Wave in Timeless Mode with Takeda Nobukatsu
Killed Sassa Narimasa in Timeless Mode
Finished one Wave in Timeless Mode with Saika Magoichi
Finished one Wave in Timeless Mode with Seiryubo
Finished one Wave in Timeless Mode with Momochi
Killed 200 Spiders in Timeless Mode
Finished one Wave in Timeless Mode with Shima Sakon
Killed Oda Nobutada in Timeless Mode
Killed Maeda Toshinaga in Timeless Mode
Finished one Wave in Timeless Mode with Sanada Yukimura
Killed Ii Naomasa and Sakakibara Yasumasa in Timeless Mode
Killed Kanamori Nagachika in Timeless Mode
Finished Vasara 1 by defeating Tokugawa
Defeated your first Boss
Finished any Stage without using melee attacks
Finished any Stage without using a Vasara Attack
Reached maximum fire power
Filled your first Vasara Gauge