  The large data sample recorded with the Belle detector at the Y(5S) energy
provides a unique opportunity to study the poorly-known $\bs$ meson. Two
analyses, performed with a data sample representing an integrated luminosity of
121 /fb, are presented: the measurement of the Bs0->J/psi f0(980) and
Bs0->J/psi f0(1370) branching fractions, and the 5sigma observation of the
decay Bs0-bar->Lambda(c)+ pi- Lambda-bar which is the first observation of a
baryonic Bs0 decay. In addition, we present new results of a measurement of the
CKM angle phi_1(beta) with B pi tagged events.
